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Highly Stretchable, Conductive Polymer Electrodes with a Mixed AgPdCu and PTFE Network Interlayer for Stretchable Electronics
Author(s) -
Yoon Sunyoung,
Sim HyeongMin,
Cho Seungse,
Ko Hyunhyub,
Park Yeehyun,
Kim Yunseok,
Kim HanKi
Publication year - 2021
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.202001500
Subject(s) - materials science , polytetrafluoroethylene , stretchable electronics , electrode , composite material , electrical conductor , flexible electronics , polyurethane , carbon nanotube , electronics , nanotechnology , electrical engineering , chemistry , engineering
A highly stretchable, conductive polytetrafluoroethylene (PTFE) electrode consisting of a mixed AgPdCu (APC) and PTFE network interlayer on a polyurethane substrate is fabricated at room temperature. The PTFE/APC‐PTFE/PTFE multilayer deposited through continuous sputtering of carbon nanotubes of the mixed PTFE and APC targets, and the resulting material exhibit a sheet resistance of 33.6 ± 6.17 Ohm per square and a stretchability of 40%. The metallic APC‐PTFE network interlayer provides a conducting path for the PTFE/APC‐PTFE/PTFE multilayer, and it maintains a reversible conductivity until the electrode has been stretched up to 40%. In addition, the sputtered PTFE/APC‐PTFE/PTFE multilayer shows semi‐transparency about 47% in the visible wavelength region. The multilayered material shows a minimal change in resistance after 10 000 cycles of repeated stretching under a constant 20% strain. In addition, the stretchable PTFE/APC‐PTFE/PTFE electrode is confirmed to be resilient outer/inner bending, folding, rolling, and twisting tests. Through successful operation of stretchable interconnectors, stretchable film heaters, and stretchable electroluminescent devices, it is confirmed that sputtered PTFE/APC‐PTFE/PTFE films can be promising stretchable electrodes for next‐generation stretchable electronics.